There is no doubt that each one of us affects the lives of those who surround us. Many of our interactions with others are very obvious to us and could be described in terms of personal, professional and social relationships. But there are other, often unnoticed, interactions: the mother taking her children to school, the man buying his paper, the youth at the bus stop – all people we see regularly and only notice when they are not there. Younger people are often very worried about what oth

If step coverage or equipment cost is more critical than purity, then PVD is supplanted by CVD.

There are many variants on the chemical vapour deposition technique, but the concept is simple: gases adsorb onto the wafer surface where a chemical reaction forms a solid product. Any other products are gases, or at least volatile liquids, and are pumped away.

There is one obvious restriction: the wafer surface must be the only place where the reaction can occur. If it is not, particle

From the time that the temperature fell to about 3 × 1012 K, at about 10−5 s after the Big Bang, stable baryons (protons and neutrons) began to form from the up and down quarks that remained after the annihilation of matter and antimatter.

To understand science, it is important that we appreciate the contexts in which discoveries are made or suppressed. We can see from the account on the previous page that human understanding of the universe has changed significantly over time. The social and political climate in which scientists work has always had a profound influence on what can and cannot be said, done, published or even postulated as worthy of further investigation. (You could undertake a similar study of the debates on hu

The fourth kind of data is essentially symbolic – symbolic creations of minds, such as the texts people have written, their art, what they have said (recorded and transcribed), the exact ways they use language and the meanings they have communicated. These symbolic data are the products of minds, but once created they can exist and be studied and analysed quite separately from the particular minds that created them. These kinds of data are used to provide evidence of meanings, and th

There are approximately one billion disabled people in the world – that’s around a seventh of the world’s population (World Bank, 2017). In Europe, one in seven people of working age (15–64) say that they have some form of disability (Author(s):

The Enlightenment had typically expressed, on the one hand, the soul and imagination and, on the other, reason and intelligence in terms of incompatible opposites. Not so Delacroix:

What are the soul and the intelligence when separated? The pleasure of naming and classifying is the fatal thing about men of learning. They are always overreaching themselves and spoiling their game in the eyes of those easy-going, faiAuthor(s): The Open University

21M.262 Modern Music: 1900-1960 (MIT) This subject covers a specific branch of music history: Western concert music of first sixty years of the twentieth century. Although we will be listening to and studying many pieces (most of the highest caliber) the goal of the course is not solely to build up a repertory of works in our memory (though that is indeed a goal). We will be most concerned with larger questions of continuity and change in music. We will also consider questions of reception, or historiography - that is, the creation Author(s): Cuthbert, Michael Scott

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The issue of global food security is at the heart of many of the ethical issues related to GM technology. United Nations population scientists estimate that the world's population will increase by 2 billion over the next 30 years, posing huge challenges for global food production. More than 842 million people are currently chronically hungry. Proponents of GM crops argue that further development of this technology is vital to meet this challenge.

In addressing the challenges of the social sciences, we have emphasised the ways in which social researchers are themselves located within a particular social and cultural context and that it is worthwhile to consider the implications of this for social science. This leads us to consider if, and how, our own position in society has an impact upon the way that we produce social scientific knowledge. In short, we should consider how much we draw upon our own values, assumptions and identities w

ghdLAB: in the world, for the worldlearn about why ghdLAB blends classroom learning and action-based field projects. MIT Sloan Senior Lecturer Anjali Sastry, students, and field partners explain what they've gained from taking on practical health care management and delivery challenges in Africa and India.

In this MIT Sloan class, teams of four students each partner with an organization on the front lines of care delivery. Together, they design an action learning project to address factors that limit thAuthor(s): No creator set

Exploring Greek vases What can you learn about an archaic community from the art they created? Can the way in which their artefacts are displayed enhance the experience of viewing it? Very few remains still exist from Ancient Greek culture on the whole. However because of the durability of the material, pottery is a large part of the archaeological record from this period in Greece’s history, and as a result these vases have exerted a disproportionately large influence on our understanding of Greek society.
These fAuthor(s): The iTunes U team

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The historian Linda Colley locates the birth of ‘Britain’ after 1707. She mentions three main factors that contributed to establishing the British nation: war, religion and the prospect of material advantage.

The creation of the UK was not free from conflict, resistance, war and military intervention.

The British Empire generated a unique opportunity for most UK nations to participate and enjoy some of the benefits it brough